2018SDIBT_国庆个人第一场
摘要：
A - Turn the Rectangles CodeForces - 1008B There are nn rectangles in a row. You can either turn each rectangle by 9090 degrees or leave it as it is. 阅读全文
posted @ 2018-10-01 17:37 一只小毛球 阅读(123) 评论(0) 推荐(0) 编辑